The surface area of a triangular pyramid is calculated by finding the area of the base triangle and adding the areas of the three triangular faces.
Assuming the base triangle has an area of 3m², we need to calculate the area of the three triangular faces.
The three triangular faces of a pyramid all have the same dimensions as the base triangle. So the total surface area of the pyramid is:
Base triangle area: 3m²
Three triangular faces: 3m² + 3m² + 3m² = 9m²
Total surface area of the triangular pyramid: 3m² (base) + 9m² (three faces) = 12m²
Therefore, the surface area of the triangular pyramid is 12m².
3 m²
3 m²
3 m²
3 m²
Calculate the surface area of the triangular pyramid.
(1 point)
m²
1 answer
3 answers